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seed-mcp/corpus/iowa_icpt_trials/icpt-corn-2024-south-full.json
T
claude 54094a0d43 Add university-extension variety trials: Illinois VT + Iowa ICPT + Ohio OCPT (+123 trial docs) 
Independent third-party performance data — land-grant programs that test every
entered brand side-by-side with replication + LSD stats. This is the legitimate
way to get Pioneer / DEKALB / Brevant / Channel performance the corpus can't
scrape directly (data_type=trial, results[] shape; falls through the trial
chunker).

- illinois_vt_trials (30 docs, 1,392 rows) — U of Illinois VT. Per-region XLSX
  (openpyxl), corn + soy + WHEAT, 2024+2025. Rich per-site agronomic metadata;
  corn-following-corn vs -soybean kept distinct.
- iowa_icpt_trials (24 docs, 674 rows) — Iowa State ICPT. ASP.NET GridView
  (viewstate postback for year/district), corn + soy by district x season.
- ohio_ocpt_trials (69 docs, 4,647 rows) — OSU/CFAES OCPT. Report PDF
  (pdfplumber; per-site column groups split by header Yield-token count +
  x-coord footnote bucketing), corn + soy per site, 2024+2025.

91 distinct seed brands across the three; majors confirmed present in the
independent rankings: DEKALB 395, Golden Harvest 249, Channel 241, NK 212,
Xitavo 135, LG 103, Pioneer 88, Asgrow 59. (A brand only appears where it
ENTERED a given program — e.g. Brevant not in Iowa, DEKALB/Channel not in
Illinois — true negatives, not parse gaps.)

- rag/chunk.py: gated `include_region` on _render_gh_plot_chunk; the 3 university
  sources route through it so the region/district is in the embedded chunk +
  labeled "variety trial (cross-vendor, independent third-party)". Existing plot
  sources (gh/lg/agrigold/proharvest) unchanged.
- requirements.txt: openpyxl (Illinois XLSX; scrape-time only).
- sources.json + README/CLAUDE/lessons: registered + attributed; lessons
  trial-data + Pioneer entries updated (Pioneer/DEKALB performance now available
  indirectly via these trials).

Validation: all 123 chunk via rag.chunk.chunks_from_trial (0 errors), 0
out-of-range yields, 0 dup keys. Public land-grant data; attribution recorded in
each tos_note. CI rebuilds the index from the committed corpus.
2026-06-10 08:35:50 -04:00

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{
"source": "iowa_icpt_trials",
"source_key": "icpt-corn-2024-south-full",
"data_type": "trial",
"vendor": "Iowa State University",
"brand_aggregator": "Iowa Crop Performance Tests publishes",
"brand": "Iowa Crop Performance Tests",
"crop": "corn",
"state": "IA",
"state_abbrev": "ia",
"year": 2024,
"region": "District South",
"district": "South",
"season": "Full Season",
"cooperator_sites": [
"Atlantic",
"Corning",
"Milo",
"Batavia",
"Crawfordsville"
],
"experiment_mean_yield": 218,
"results": [
{
"rank": 1,
"brand": "Dekalb",
"product": "DKC114-42SSPRIB",
"traits": "LL,RR2 SSP-RIB",
"metrics": {
"RM": 114,
"Yield": 230.2,
"Yldp": 105.2,
"Moist": 17.5,
"Wyld": 240.1,
"Eyld": 217.7,
"Atlantic": 253,
"Corning": 238.2,
"Milo": 229.1,
"Batavia": 256.6,
"Crawfordsville": 167.6
}
},
{
"rank": 2,
"brand": "Prairie Hybrid Seeds",
"product": "7445",
"traits": "",
"metrics": {
"RM": 112,
"Yield": 227.3,
"Yldp": 103.8,
"Moist": 16.3,
"Wyld": 227.3,
"Eyld": 221.5,
"Atlantic": 248.2,
"Corning": 231.7,
"Milo": 201.9,
"Batavia": 289.6,
"Crawfordsville": 173.1
}
},
{
"rank": 3,
"brand": "Cornelius Seed",
"product": "6D72 VT2P",
"traits": "RR2 VT2P",
"metrics": {
"RM": 114,
"Yield": 226.8,
"Yldp": 103.6,
"Moist": 16.8,
"Wyld": 229.9,
"Eyld": 225.6,
"Atlantic": 244.8,
"Corning": 217,
"Milo": 227.9,
"Batavia": 263.6,
"Crawfordsville": 185.4
}
},
{
"rank": 4,
"brand": "Cornelius Seed",
"product": "C7366DGDP",
"traits": "RR2 DGVT2P",
"metrics": {
"RM": 113,
"Yield": 225.4,
"Yldp": 103,
"Moist": 15.7,
"Wyld": 220.3,
"Eyld": 225.5,
"Atlantic": 218.4,
"Corning": 225.9,
"Milo": 216.5,
"Batavia": 270,
"Crawfordsville": 189.9
}
},
{
"rank": 5,
"brand": "Viking/Blue River",
"product": "78-13",
"traits": "",
"metrics": {
"RM": 113,
"Yield": 225.4,
"Yldp": 103,
"Moist": 17.4,
"Wyld": 224.8,
"Eyld": 215.5,
"Atlantic": 242.8,
"Corning": 226.6,
"Milo": 205,
"Batavia": 267,
"Crawfordsville": 174.5
}
},
{
"rank": 6,
"brand": "Renk",
"product": "RK876VT2P",
"traits": "RR2 VT2P-RIB",
"metrics": {
"RM": 113,
"Yield": 224.3,
"Yldp": 102.5,
"Moist": 15.9,
"Wyld": 224.7,
"Eyld": 222.8,
"Atlantic": 242.6,
"Corning": 216.7,
"Milo": 214.8,
"Batavia": 264.4,
"Crawfordsville": 189.1
}
},
{
"rank": 7,
"brand": "Dekalb",
"product": "DKC112-12TRERIB",
"traits": "LL,RR2 TRE-RIB",
"metrics": {
"RM": 112,
"Yield": 223.6,
"Yldp": 102.2,
"Moist": 16.5,
"Wyld": 230.9,
"Eyld": 223.7,
"Atlantic": 231.3,
"Corning": 221.1,
"Milo": 240.3,
"Batavia": 262.2,
"Crawfordsville": 168.6
}
},
{
"rank": 8,
"brand": "Renk",
"product": "RK921VT2P",
"traits": "RR2 VT2P",
"metrics": {
"RM": 115,
"Yield": 221.5,
"Yldp": 101.2,
"Moist": 16.6,
"Wyld": 226.2,
"Eyld": 216,
"Atlantic": 236.5,
"Corning": 222.2,
"Milo": 220,
"Batavia": 257.9,
"Crawfordsville": 170.1
}
},
{
"rank": 9,
"brand": "Dyna-Gro",
"product": "D56TC44RIB",
"traits": "RR2 TRE-RIB",
"metrics": {
"RM": 116,
"Yield": 220.7,
"Yldp": 100.8,
"Moist": 16.3,
"Wyld": 221.3,
"Eyld": 214.4,
"Atlantic": 250.1,
"Corning": 214.2,
"Milo": 199.5,
"Batavia": 265.9,
"Crawfordsville": 177.9
}
},
{
"rank": 10,
"brand": "Latham",
"product": "LH 6445 VT2 PRO",
"traits": "RR2 VT2P",
"metrics": {
"RM": 114,
"Yield": 220.6,
"Yldp": 100.8,
"Moist": 17,
"Wyld": 219.8,
"Eyld": 218,
"Atlantic": 233,
"Corning": 214.3,
"Milo": 212.1,
"Batavia": 252.3,
"Crawfordsville": 189.7
}
},
{
"rank": 11,
"brand": "NuTech/G2 Genetics",
"product": "74A5PCE",
"traits": "LL,RR2 PCE",
"metrics": {
"RM": 114,
"Yield": 219.8,
"Yldp": 100.4,
"Moist": 16.4,
"Wyld": 220.2,
"Eyld": 220.1,
"Atlantic": 235.9,
"Corning": 207,
"Milo": 217.7,
"Batavia": 265.6,
"Crawfordsville": 177
}
},
{
"rank": 12,
"brand": "Renk",
"product": "RK958VT2P",
"traits": "RR2 VT2P-RIB",
"metrics": {
"RM": 115,
"Yield": 219.8,
"Yldp": 100.4,
"Moist": 16.8,
"Wyld": 219,
"Eyld": 215,
"Atlantic": 238.3,
"Corning": 205,
"Milo": 213.8,
"Batavia": 253.5,
"Crawfordsville": 177.8
}
},
{
"rank": 13,
"brand": "NuTech/G2 Genetics",
"product": "73A4AM",
"traits": "LL,RR2 AM",
"metrics": {
"RM": 113,
"Yield": 219.7,
"Yldp": 100.4,
"Moist": 16.6,
"Wyld": 218.6,
"Eyld": 207.9,
"Atlantic": 243.8,
"Corning": 232.8,
"Milo": 179.3,
"Batavia": 274,
"Crawfordsville": 170.5
}
},
{
"rank": 14,
"brand": "Pioneer",
"product": "P1366Q",
"traits": "LL,RR2 Qrome",
"metrics": {
"RM": 113,
"Yield": 219.5,
"Yldp": 100.3,
"Moist": 15.9,
"Wyld": 221.7,
"Eyld": 207.4,
"Atlantic": 246.1,
"Corning": 223.2,
"Milo": 195.8,
"Batavia": 253.2,
"Crawfordsville": 173
}
},
{
"rank": 15,
"brand": "Dyna-Gro",
"product": "D53VC54RIB",
"traits": "RR2 VT2P-RIB",
"metrics": {
"RM": 113,
"Yield": 219.2,
"Yldp": 100.1,
"Moist": 16.5,
"Wyld": 223.5,
"Eyld": 215.6,
"Atlantic": 231.1,
"Corning": 221.7,
"Milo": 217.6,
"Batavia": 259.9,
"Crawfordsville": 169.2
}
},
{
"rank": 16,
"brand": "NuTech/G2 Genetics",
"product": "75C1PCE",
"traits": "LL,RR2 PCE",
"metrics": {
"RM": 115,
"Yield": 218.8,
"Yldp": 99.9,
"Moist": 17.6,
"Wyld": 224.7,
"Eyld": 207.1,
"Atlantic": 241.2,
"Corning": 228,
"Milo": 205,
"Batavia": 243.2,
"Crawfordsville": 173
}
},
{
"rank": 17,
"brand": "Cornelius Seed",
"product": "C7590DP",
"traits": "RR2 VT2P",
"metrics": {
"RM": 115,
"Yield": 217.9,
"Yldp": 99.5,
"Moist": 16.6,
"Wyld": 221.3,
"Eyld": 218,
"Atlantic": 230.5,
"Corning": 210.9,
"Milo": 222.7,
"Batavia": 252.2,
"Crawfordsville": 179
}
},
{
"rank": 18,
"brand": "Pioneer",
"product": "P1563Q",
"traits": "LL,RR2 Qrome",
"metrics": {
"RM": 115,
"Yield": 217.9,
"Yldp": 99.6,
"Moist": 17.4,
"Wyld": 217,
"Eyld": 212.3,
"Atlantic": 242.6,
"Corning": 215,
"Milo": 193.4,
"Batavia": 252.5,
"Crawfordsville": 191.1
}
},
{
"rank": 19,
"brand": "Latham",
"product": "LH 6306 PCE",
"traits": "LL,RR2 PC-RIB",
"metrics": {
"RM": 113,
"Yield": 215.4,
"Yldp": 98.4,
"Moist": 16.1,
"Wyld": 213.4,
"Eyld": 210.2,
"Atlantic": 236,
"Corning": 207.5,
"Milo": 196.6,
"Batavia": 270.9,
"Crawfordsville": 163.2
}
},
{
"rank": 20,
"brand": "Latham",
"product": "LH 6338 SS PRO",
"traits": "RR2 SSP",
"metrics": {
"RM": 113,
"Yield": 215,
"Yldp": 98.2,
"Moist": 16.9,
"Wyld": 225.4,
"Eyld": 206.9,
"Atlantic": 236.6,
"Corning": 225.7,
"Milo": 213.9,
"Batavia": 252.4,
"Crawfordsville": 154.4
}
},
{
"rank": 21,
"brand": "NK Seeds",
"product": "NK1386-VZ",
"traits": "GT,LL VZ",
"metrics": {
"RM": 113,
"Yield": 213.7,
"Yldp": 97.6,
"Moist": 16.7,
"Wyld": 217.4,
"Eyld": 204.5,
"Atlantic": 240.9,
"Corning": 219.7,
"Milo": 191.7,
"Batavia": 239.3,
"Crawfordsville": 182.5
}
},
{
"rank": 22,
"brand": "NK Seeds",
"product": "NK1228-AA",
"traits": "GT,LL AA",
"metrics": {
"RM": 112,
"Yield": 213.4,
"Yldp": 97.5,
"Moist": 16.4,
"Wyld": 213,
"Eyld": 208.8,
"Atlantic": 234.9,
"Corning": 201.9,
"Milo": 202.2,
"Batavia": 257.9,
"Crawfordsville": 166.3
}
},
{
"rank": 23,
"brand": "NK Seeds",
"product": "NK1307-DV",
"traits": "GT,LL DURV",
"metrics": {
"RM": 113,
"Yield": 209.5,
"Yldp": 95.7,
"Moist": 16.8,
"Wyld": 207.2,
"Eyld": 203.7,
"Atlantic": 237.1,
"Corning": 209.9,
"Milo": 174.5,
"Batavia": 247.6,
"Crawfordsville": 189.2
}
},
{
"rank": 24,
"brand": "Cornelius Seed",
"product": "C7308TRE",
"traits": "RR2 TRE-RIB",
"metrics": {
"RM": 113,
"Yield": 208.1,
"Yldp": 95.1,
"Moist": 15.6,
"Wyld": 204.4,
"Eyld": 200,
"Atlantic": 223.8,
"Corning": 209.1,
"Milo": 180.3,
"Batavia": 251.2,
"Crawfordsville": 168.5
}
},
{
"rank": 25,
"brand": "Prairie Hybrid Seeds",
"product": "9703",
"traits": "",
"metrics": {
"RM": 116,
"Yield": 198.9,
"Yldp": 90.8,
"Moist": 18,
"Wyld": 203.4,
"Eyld": 196.7,
"Atlantic": 205.5,
"Corning": 204.4,
"Milo": 200.4,
"Batavia": 242.4,
"Crawfordsville": 147.3
}
}
],
"n_results": 25,
"source_urls": [
"https://www.croptesting.iastate.edu/corn/CornDistrict2.aspx"
],
"tos_note": "Footer 'Copyright (c) ...ISU...All rights reserved' (no automation clause, no robots.txt); public ICPT data; low request rate; attribute Iowa Crop Performance Tests / ISU.",
"fetched_at": "2026-06-10T12:12:17.030076+00:00",
"scraper_version": "0.1.0"
}
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